Percarbonate stabilised by coating with an aqueous solution of phosphate and boron compounds
US5670470A · kind A · utility
3Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1995 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Jun 21, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3937
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for stabilising percarbonate by coating with a coating agent. The percarbonate particles are treated with a concentrated aqueous solution containing at least one boron compound selected from the metal and ortho boric acids and at least one phosphate. Water is removed to provide the coated percarbonate particles which are useful in bleaching and washing compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.